Steam-superheater for locomotive and other boilers.



J. G. ROBINSON. STEAM SUPERHEATBR FOR LOCOMOTIVE AND OTHER BOILERS.

APPLICATION FILED MAR. 23, 1912. 1, 109,303. Patented Sept. 1, 1914.

2 SHEETS-SHEET 2.

III/ill '9 mmtsses 6 ffufenTr W $1,! 6 6F ante) THE NORRIS PETERScou'PnonmLlri-lou WASHINGTON, D. C,

J. G. ROBINSON. STEAM SUPBRHEATER FOR LOGOMOTIVE AND OTHER BOILERS.

APPLIUATION FILED MAB. 23,1912.

Patented Sept. 1, 1914.

2 SHEETS-SHEET 1.

I? In verdar yams IA/{messes I 1"? 7 I m @wgww Be it known that L'JOHNsoN, a subject of theKing'of Great Britain and Ireland, residing atManchester, in the county of Lancaster, England, (whose postfroHN GEORGEno amson'for mnncnris'rnn, nncnann.

srEAM-sUrnn'Hna'rErt r03.

Specification of Letters mane nocoM orIvE AND OTHER. BoILnRs."

I I rptiaetanmeaMartha,191a; Seria1'No.685,857., 1

To all whom it may concern GEORGE RoBIN- oflice address is- BoothdalefFairfield, Manchester, in the county .of Lancaster,

7 England) have invented certain new and useful Improvements in andRelating to Steam-Superheaters for Locomotive. and

other "Boilers; and :1 'dorhereby declare the:

' J following to be a full, clear, and exact description of theinvention, such as will en-' able others skilled in the art'to which itappertai'ns to make and usegthe same. -Th1s invention relatestoimprovements" in steam superheaters, for locomotiveandother boilers, ofthe kind in which the ends of thef-superheater pipes orxelementsf aresecured to a wall of a suitablysituatedheader or steam collector, saidWall being :provided with holes in which said pipe ends are securedor'with which the pipe ends are hel d in registration.

xMy invention relates more particularly to headers'or steam collectorsfor use, pri-s marily, in connection with steam supersaid pipes beingconnected to a header di vided xinto compartments, into certain ot' toone cylinder valve chestand the other heaters of the typewhereinthesuperheater elements "or pipes are arranged in 'the fire tubes ;or fluesof aiboiler so that they will be heated by the gases or combustion, the

which compart1nents1the saturated steam enters, and thence flows throughthe pipes into the other compartments of the header.

' The principal objectofmy invention is to provide an improvedconstruction of header of the above type. f k

In' the accompanying drawings -:Figurc l is an elevation, partly insection, of one form of header vaccordlng lLO tllIS mvention havingseven transverse compartments and arranged, for 18 "superheater elementsor pipes; Fig 2 is a plan partly. inrsection of the header shown in Fig.11, and Fig. 3

isa cross section of the header taken on the lines A'TB Figs. 1 and 2,looking in the di'- rection of the arrows.

or half of the headerfeeds the steam pipe The header accord ing to theabove figures is such that one side side or" half of the header feedsithe steam Patented seam, 1 4- pip'eto the other'cylindervalve chest.-Figs.

other, so that if for any causeone cylinder' at any particular timerequires more steam thanthe :other cylinder superheated steam i iirom'vthatside of the header whose cylinder requires the lesser amount I ofsteam may ,p'assto that'side'ofthe header whose cylinder requires thegreater amount ofsteam and thus balance the steam supply to bothcylinders- Fig. 6 is a sectional eleva tion ofthe header shown in Figs.4: and 5, itaken on the line CDFig. 5 and looking in the direction ofthe arrow, and Fig. 7

I is a sectional.elevationot the headers shown in Figs. 1 to 6, takenon' the lines E F Figs; 1, 2, 4L and 5 and looking in the direction ofthe arrow the removablefront coverslbeingomitted.

Referring to the drawings, the box or casing which forms the'headerconsists of, or is divided by interior walls or partitions into a numberof compartments arranged transversely of the greatest: length of theheader, the" alternate compartments being saturated and superheatedsteam compartments, compartments 1, 3, 5 and 7 being forsuperheated'steam;and compartments "2, 2*,

4, Sand -6 *being for saturatedisteam. 1 7 8 is a tubular boss at thereargof and com- *municating-W'ith compartment 4, having a flange 9vforconnecting the pipe conveying the saturated steam from the steam spaceof the boiler to theheader, and 10, 1 1 are fiangesfor connecting toitheheader at com- 1 partm'ents 1 and?? thesteam pipes 12,1 13respectively, conveying the superheated steam fromxthe. header to thevalve chestsi of the engine 1 1 cylinders, 14 being screw'-' threadedstuds or dowels :fixedly mounted' in themetal of the headeruandilfi'nutsco-- operating with. said studs br -dowels by" which studs and nuts'saidflanges 10, 11 ,iare

flanges 10, 11 are secured may be thicker.

than at other places, and said thickening 5 may be external (as shown inFigs.2 and 5) or internal. I

Compartments 1, 2, 3, 4', 5, 6 and 7 are formed open at the front, andcompartments 2, 3, 4L, 5 and 6 are adapted to be closed 10 by. a ,coverplate 16 removably secured or held in position by nuts 17 screwed on tothreaded studs or dowels 18 fixedly mounted in metal at the front of theheaderbody or casting. The front, faces or edges of the various wallsofthe header with which said plate or cover 16 contacts maybe, andpreferably are suitably thickened out or flanged to provide betterOinting faces or surfaces. The faces of the front wall with which the 20cover 16" and flanges 1O, 11 contact are machined true and smooth. Ifdesired instead of the cover 16 and flanges 10, 11 actually contactingwith the front wall of the header suitable joint making material may beplaced between them and said wall, such for instance as copper wiregauze. I

22 are lugs which may be provided at the ends of the header. and bywhich it maybe secured to suitable brackets in the smoke box, and 24 arestrengthening webs of metal that may be provided if thought desirable atsuitable places on the header. The ends 20, 21 of the superheating pipesor. elements are expanded directly into holes drilled or 5 otherwiseprovided therefor in the bottom a wall 25 ofthe header which thusconstitutes a tube plate. The tube plate 25 forms the bottom or lowerwall of all'the transverse compartments of the header, and the bottom 40of the compartments being all at the same level the tube plate 25 isthus in effect a flat straight plate. The several saturated steamcompartments of the header are connected to one another by ports orvpassages 26, 27 in the header.

In Figs. lto 7 inc sages 26, 27 are arranged in or at the top of the boxor casting forming the header and pass over or above the superheatedsteam compartments 3 and 5 respectively so as to place saturated steamcompartments 2 and 6 in communication with. compartment 4 and thereforewith one another. U

The superheater steam compartments 1 and 3 are connected to one anotherby a port or passage 28. and the superheater steam compartments 5 and 7are connected to one another by a. port or'passage 29. In the headersshown inFigsal to 7 inclusive the ports or'passages 28,29 arelocated inor atthe back or rearof the box or casting forming the header andbehindthe saturated steam compartments :2 and 6 respectively.

The superheated steam compartments 3 and 6 5 are also connected, orplaced in communi- .side

usive these ports or pas cation, with one another by means of a port orpassage 30 and all the superheated steam compartments are therebyconnected or placed in communication. In the header shown in Figs. 4 to7 the said port or passage 30 is located in the removable front cover16' and thus passes in front of saturated steam compartment 4:.

The open ends of the'port or passage 30 formed or provided in theremovable front cover 16 of the header come opposite or register withthe openings at the front of superheated steam compartments 3 and 5 whenthe said cover 16 is placed in position, and the back wall or bridgepiece 31 of the passage 30 in the cover comes in front of and closes theopening'at the front of saturated steam compartment 4.

It will further be seen that the ends of the superheater elements orpipes can, with a header according to this invention, be readilyexpanded in their holes in the'tube plate of the header by means of asuitabletool insertedthrough the openings of the several compartmentsafter the front cover plate 16 has, been removed. The superheaterelementsor pipes-can also be readily driven out by a suitable tool. orap liance inserted through such openings, the orm and dimensions of thesaid compartments being suitable for these purposes. I

What I claim as my invention and desire to secure by Letters Patent is V'1'. In a superheater, the combination, with superheater elements; of aheader provided with'integrally-formed transverse and longitudinalpartitions which divide it into .compartments and longitudinal steampassages, said compartments comprising chambers for saturated steam andchambers for superheated steam arranged alternately and side by one ofthe said passages being arranged at the top of the header and connectingthe chambers of one series, and the other passages being arranged at theback of the 11 header and connecting the chambers of the other series,and all the chambers having hand-openings at their front sides andhavingjthe superheater elements connected to their bottom sides;andremovable covering 1 means for closing the said hand-openings.

2. In a superheater, the combination, with superheater elements; of aheader provided with integrally-formed transverse and longitudinal steampassages, said compartments comprising chambers for saturated steam andchambers for superheated steam arranged alternately and side by side,one of the said passages being arranged at the top of the headerand-connecting the chambers 1 of one series, and the other passagesbeing arranged at. the back of the headerand connecting the chambers ofthe other series, and all the chambers having hand-openings at theirfront sides and having the superheater elements connected to theirbottom sides; In testimon whereofl aflix my signature,

and removable covering means for closing in presence 0 two witnesses.the said'hand-opemngs, said covering means being provided with alongitudinal steam JOHN, GEORGE RQBINSONf passage which forms asupplementary com- Witnesses:

munication between certain of the similar G. B; SMITH.

steam chambers of one series. W. H. LINSON. t

Copies of this patentmay be obtained for five cents each, by. addressingthe @(lommissioizr of latents, a T washingtem n c. i

